2130975 has 96 divisors (see below), whose sum is σ = 4999680. Its totient is φ = 864000.

The previous prime is 2130959. The next prime is 2130979. The reversal of 2130975 is 5790312.

It is not a de Polignac number, because 2130975 - 2⁴ = 2130959 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2130979) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 51955 + ... + 51995.

It is an arithmetic number, because the mean of its divisors is an integer number (52080).

2^2130975 is an apocalyptic number.

2130975 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2130975 is an abundant number, since it is smaller than the sum of its proper divisors (2868705).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2130975 is a wasteful number, since it uses less digits than its factorization.

2130975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78 (or 67 counting only the distinct ones).

The product of its (nonzero) digits is 1890, while the sum is 27.

The square root of 2130975 is about 1459.7859432122. The cubic root of 2130975 is about 128.6844640861.

The spelling of 2130975 in words is "two million, one hundred thirty thousand, nine hundred seventy-five".